GSM + GPRS + GPS SIM808 Cellular Module

Description

For people who want to integrate a cellular (GSM/GPRS) module into their design without the full breakout, this hand-solderable module is pretty nice!

• Quad-band 850/900/1800/1900MHz – connect onto any global GSM network with any 2G SIM (in the USA, T-Mobile is suggested)
• Fully-integrated GPS (MT3336 chipset with -165 dBm tracking sensitivity) that can be controlled and query over the same serial port
• Make and receive voice calls using a headset or an external 32Ω speaker + electret microphone
• Send and receive SMS messages
• Send and receive GPRS data (TCP/IP, HTTP, etc.)
• PWM/Buzzer vibrational motor control
• AT command interface with “auto baud” detection

Here’s the GPS specifications:

• 22 tracking /66 acquisition channels
• GPS L1 C/A code
• Sensitivity
• Tracking: -165 dBm
• Cold starts : -147 dBm
• Time-To-First-Fix
• Cold starts: 30s (typ.)
• Hot starts: 1s (typ.)
• Warm starts: 28s (typ.)
• Accuracy: approx 2.5 meters

More at https://learn.adafruit.com/adafruit-fona-808-cellular-plus-gps-breakout/downloads#datasheets-and-app-notes